56c00df710
The backtrace-on-stack-overflow create provides best-effort stack traces when a stack overflow happens. Since it's running on the (usually tiny) signal alternate stack this isn't easy. This is guarded by a new `backtrace_overflow` feature flag and never enabled (even if that feature is selected) for release builds. This is strictly for debugging; there's crazy unsafe voodoo in there. https://lib.rs/crates/backtrace-on-stack-overflow Example output: ``` Stack Overflow: 0: backtrace_on_stack_overflow::handle_sigsegv at /home/amjoseph/.cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-on-stack-overflow-0.2.0/src/lib.rs:93:40 1: <unknown> 2: __rust_probestack 3: tvix_eval::vm::VM::run_op at src/vm.rs:399 4: tvix_eval::vm::VM::run at src/vm.rs:388:23 5: tvix_eval::vm::VM::enter_frame at src/vm.rs:360:22 6: tvix_eval::value::thunk::Thunk::force at src/value/thunk.rs:116:25 7: tvix_eval::vm::VM::run_op at src/vm.rs:801:37 8: tvix_eval::vm::VM::run at src/vm.rs:388:23 9: tvix_eval::vm::VM::enter_frame at src/vm.rs:360:22 10: tvix_eval::value::thunk::Thunk::force at src/value/thunk.rs:116:25 ... ``` Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I1d8a2017f836be7bf91a2223e7adacb86fa1dbb2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7354 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
71 lines
2 KiB
TOML
71 lines
2 KiB
TOML
[package]
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name = "tvix-eval"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[lib]
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name = "tvix_eval"
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[[bin]]
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name = "tvix-eval"
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required-features = [ "repl" ]
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[dependencies]
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smol_str = "0.1"
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rustyline = { version = "10.0.0", optional = true }
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dirs = "4.0.0"
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path-clean = "0.1"
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tabwriter = "1.2"
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rowan = "*" # pinned by rnix
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codemap = "0.1.3"
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codemap-diagnostic = "0.1.1"
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proptest = { version = "1.0.0", default_features = false, features = ["std", "alloc", "break-dead-code", "tempfile"], optional = true }
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test-strategy = { version = "0.2.1", optional = true }
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clap = { version = "3.2.22", optional = true, features = ["derive", "env"] }
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serde = "1.0"
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serde_json = "1.0"
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regex = "1.6.0"
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builtin-macros = { path = "./builtin-macros", package = "tvix-eval-builtin-macros" }
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backtrace-on-stack-overflow = { version = "0.2.0", optional = true }
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# rnix has not been released in a while (as of 2022-09-23), we will
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# use it from git.
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[dependencies.rnix]
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git = "https://github.com/nix-community/rnix-parser.git"
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rev = "85a045afd33e073a3eab4c0ea2f515b6bed557ab"
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[dev-dependencies]
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criterion = "0.3.6"
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test-generator = "0.3.0"
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pretty_assertions = "1.2.1"
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itertools = "0.10.3"
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tempdir = "0.3.7"
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[features]
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default = [ "repl", "impure", "arbitrary", "nix_tests", "backtrace_overflow" ]
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# Enables running the Nix language test suite from the original C++
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# Nix implementation (at version 2.3) against Tvix.
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nix_tests = []
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# Enables building the binary (tvix-eval REPL)
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repl = [ "rustyline", "clap" ]
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# Enables operations in the VM which depend on the ability to perform I/O
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impure = []
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# Enables Arbitrary impls for internal types (required to run tests)
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arbitrary = [ "proptest", "test-strategy" ]
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# For debugging use only; not appropriate for production use.
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backtrace_overflow = [ "backtrace-on-stack-overflow" ]
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[[bench]]
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name = "eval"
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harness = false
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[profile.release-with-debug]
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inherits = "release"
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debug = true
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